GB2051285A - Wheel Nuts - Google Patents

Wheel Nuts Download PDF

Info

Publication number
GB2051285A
GB2051285A GB7921721A GB7921721A GB2051285A GB 2051285 A GB2051285 A GB 2051285A GB 7921721 A GB7921721 A GB 7921721A GB 7921721 A GB7921721 A GB 7921721A GB 2051285 A GB2051285 A GB 2051285A
Authority
GB
United Kingdom
Prior art keywords
nut
wheel
washer
head
seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB7921721A
Other versions
GB2051285B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FOREST FASTENERS Ltd
Original Assignee
FOREST FASTENERS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FOREST FASTENERS Ltd filed Critical FOREST FASTENERS Ltd
Priority to GB7921721A priority Critical patent/GB2051285B/en
Publication of GB2051285A publication Critical patent/GB2051285A/en
Application granted granted Critical
Publication of GB2051285B publication Critical patent/GB2051285B/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/14—Attaching disc body to hub ; Wheel adapters
    • B60B3/145—Attaching disc body to hub ; Wheel adapters using washers or distance bushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B3/00—Disc wheels, i.e. wheels with load-supporting disc body
    • B60B3/14—Attaching disc body to hub ; Wheel adapters
    • B60B3/16—Attaching disc body to hub ; Wheel adapters by bolts or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/02—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

A wheel nut for vehicle wheels which are located by a central spigot, incorporates a captive seating washer (12) and part-spherical seating surfaces (16) and (17) between the nut head (11) and washer (12) to allow the wheel nut to seat via its washer on a flat surface even in the event of a misaligned stud or a misaligned internal nut thread, without applying a bending load to the stud. <IMAGE>

Description

SPECIFICATION Wheel Nuts The invention relates to wheel nuts for securing vehicle wheels in position.
The traditional way of securing a vehicle wheel in its correct location in relation to a hub is to provide a conical seat around the wheel stud hole on the wheel and a corresponding seat on the abutment end of a nut so that as the nuts are tightened a wheel held by these nuts is automatically centred in relation to the studs. This arrangement can be entirely satisfactory on passenger cars and other small or light vehicles but the accuracy of wheel location can be inadequate for heavy commercial vehicles, particularly at high speed. In order to overcome this problem, it is becoming popular to locate a wheel centrally on its hub by means of a spigot or other carefully dimensioned and positioned interengagement between wheel and hub and then to use wheel studs and associated nuts merely to hold the wheel on to the hub and to transmit torque between the wheel and the hub.
However a problem can arise in connection with such studs and nuts because if the stud is axially misaligned or the screw thread on the nut is not accurately aligned with the seat of the nut, the tightening of the wheel nut can produce a bending load on the stud. This results in a dangerous stress concentration in a component which is subject to cyclically fluctuating loads as the wheel rotates so that it can be susceptible to fatigue failure.
According to the present invention a wheel nut comprising an internally threaded nut head and a captive seating washer is characterised by the provision of part-spherical seating surfaces between the nut head and the washer and some freedom for movement between the nut head and washer with the seating surfaces in mutual contact.
Preferably the seating surface on the nut head is convex and the seating surface on the washer is concave.
Preferably the nut has a hexagonal exterior portion and an enlarged collar adjacent the end of the nut which has a conical seat so that the seat extends out beyond the dimensions of the hexagon.
Preferably a sleeve extends axially from the nut head from within the seat, passes through the washer with a clearance and is turned out to hold the washer to the nut head with a clearance for relative radial movement.
An embodiment of the invention will now be described by way of example only with reference to the accompanying drawings in which: Figure 1 is a diagrammatic cross section through a nut according to the present invention; Figure 2 is a plan view of the nut shown in Figure 1; and Figure 3 is an enlarged view of a part of Figure 1.
The wheel nut incorporates a nut head 11 and a captive washer 1 2. The upper part of the nut head as shown is of conventional design and dimensions with a hexagonal outer surface 1 3 and an internal axial screw thread 14. The lower part of the nut head incorporates an integral outwardly extending collar 1 5. The major part of the bottom surface of the nut head has a part spherical seating surface 1 6 which extends outwardly beyond the dimensions of the hexagonal part of the nut by virtue of the collar 15.
The washer 12 is of annular form and has a spherical upper seating surface 1 7 of the same radius as the spherical seat 1 6. The lower surface of washer 1 2 is flat for engagement with a flat wheel surface.
An integral sleeve 1 8 extends axially of the nut in a downward direction at a diameter which is clear of the screw thread 14 but is inward from the spherical seat 1 6. This sleeve passes through the central aperture of the washer 1 2 and is turned out to engage behind an inwardly directed rib 1 9 of the washer in order to render the washer 12 captive on the nut head 1 1. The rib 19 surrounds the sleeve 1 8 with a clearance so that some movement in a radial direction is possible between the nut head and the washer to allow one component to slide radially over the other in a generally radial direction with the spherical surfaces in mutual contact.
In use, when the nut has been produced with accurate alignment and concentricity between the screw thread 14 and the seat 1 6 and when the wheel stud to which the nut is to be secured is straight and perpendicular to the seating surface of the wheel, the wheel nut shown in the drawing can be tightened down to produce even loading around the periphery of the nut and avoid any bending load on the wheel stud. All of this is achieved whilst maintaining the nut head and the washer in accurate concentric alignment as shown. This is the same situation as would occur with a conventional nut. However, with a conventional nut and some misalignment, as the nut is tightened down the whole of the clamping load is taken at one edge of the nut, producing a bending load in the stud. In contrast, with the present invention, misalignment merely causes some movement between the spherical surfaces of the washer and nut to compensate for the misalignment and to result in a clamping load around the whole of the periphery of the nut and washer. Thus this arrangement prevents excessive bending loads and stress concentrations in the associated wheel stud and thereby provides a satisfactory wheel mounting.
Claims
1. A wheel nut comprising an internally threaded nut head and a captive seating washer characterised by the provision of part-spherical seating surfaces between the nut head and the washer and some freedom of movement between the nut head and the washer with the seating surfaces in mutual contact.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Wheel Nuts The invention relates to wheel nuts for securing vehicle wheels in position. The traditional way of securing a vehicle wheel in its correct location in relation to a hub is to provide a conical seat around the wheel stud hole on the wheel and a corresponding seat on the abutment end of a nut so that as the nuts are tightened a wheel held by these nuts is automatically centred in relation to the studs. This arrangement can be entirely satisfactory on passenger cars and other small or light vehicles but the accuracy of wheel location can be inadequate for heavy commercial vehicles, particularly at high speed. In order to overcome this problem, it is becoming popular to locate a wheel centrally on its hub by means of a spigot or other carefully dimensioned and positioned interengagement between wheel and hub and then to use wheel studs and associated nuts merely to hold the wheel on to the hub and to transmit torque between the wheel and the hub. However a problem can arise in connection with such studs and nuts because if the stud is axially misaligned or the screw thread on the nut is not accurately aligned with the seat of the nut, the tightening of the wheel nut can produce a bending load on the stud. This results in a dangerous stress concentration in a component which is subject to cyclically fluctuating loads as the wheel rotates so that it can be susceptible to fatigue failure. According to the present invention a wheel nut comprising an internally threaded nut head and a captive seating washer is characterised by the provision of part-spherical seating surfaces between the nut head and the washer and some freedom for movement between the nut head and washer with the seating surfaces in mutual contact. Preferably the seating surface on the nut head is convex and the seating surface on the washer is concave. Preferably the nut has a hexagonal exterior portion and an enlarged collar adjacent the end of the nut which has a conical seat so that the seat extends out beyond the dimensions of the hexagon. Preferably a sleeve extends axially from the nut head from within the seat, passes through the washer with a clearance and is turned out to hold the washer to the nut head with a clearance for relative radial movement. An embodiment of the invention will now be described by way of example only with reference to the accompanying drawings in which: Figure 1 is a diagrammatic cross section through a nut according to the present invention; Figure 2 is a plan view of the nut shown in Figure 1; and Figure 3 is an enlarged view of a part of Figure 1. The wheel nut incorporates a nut head 11 and a captive washer 1 2. The upper part of the nut head as shown is of conventional design and dimensions with a hexagonal outer surface 1 3 and an internal axial screw thread 14. The lower part of the nut head incorporates an integral outwardly extending collar 1 5. The major part of the bottom surface of the nut head has a part spherical seating surface 1 6 which extends outwardly beyond the dimensions of the hexagonal part of the nut by virtue of the collar 15. The washer 12 is of annular form and has a spherical upper seating surface 1 7 of the same radius as the spherical seat 1 6. The lower surface of washer 1 2 is flat for engagement with a flat wheel surface. An integral sleeve 1 8 extends axially of the nut in a downward direction at a diameter which is clear of the screw thread 14 but is inward from the spherical seat 1 6. This sleeve passes through the central aperture of the washer 1 2 and is turned out to engage behind an inwardly directed rib 1 9 of the washer in order to render the washer 12 captive on the nut head 1 1. The rib 19 surrounds the sleeve 1 8 with a clearance so that some movement in a radial direction is possible between the nut head and the washer to allow one component to slide radially over the other in a generally radial direction with the spherical surfaces in mutual contact. In use, when the nut has been produced with accurate alignment and concentricity between the screw thread 14 and the seat 1 6 and when the wheel stud to which the nut is to be secured is straight and perpendicular to the seating surface of the wheel, the wheel nut shown in the drawing can be tightened down to produce even loading around the periphery of the nut and avoid any bending load on the wheel stud. All of this is achieved whilst maintaining the nut head and the washer in accurate concentric alignment as shown. This is the same situation as would occur with a conventional nut. However, with a conventional nut and some misalignment, as the nut is tightened down the whole of the clamping load is taken at one edge of the nut, producing a bending load in the stud.In contrast, with the present invention, misalignment merely causes some movement between the spherical surfaces of the washer and nut to compensate for the misalignment and to result in a clamping load around the whole of the periphery of the nut and washer. Thus this arrangement prevents excessive bending loads and stress concentrations in the associated wheel stud and thereby provides a satisfactory wheel mounting. Claims
1. A wheel nut comprising an internally threaded nut head and a captive seating washer characterised by the provision of part-spherical seating surfaces between the nut head and the washer and some freedom of movement between the nut head and the washer with the seating surfaces in mutual contact.
2. A wheel nut as claimed in Claim 1 wherein the seating surface on the nut head is convex and the seating surface on the washer is concave.
3. A wheel nut as claimed in Claim 1 or Claim 2 wherein the nut has a hexagonal exterior portion and an enlarged collar adjacent the end of the nut which has a part spherical seat so that the seat extends out beyond the dimensions of the hexagon.
4. A wheel nut as claimed in any preceding claim wherein a sleeve extends axially from the nut head from within the seat, passes through the washer with a clearance and is turned out to hold the washer to the nut head with a clearance for relative radial movement.
5. A wheel nut substantially as described with reference to and as illustrated by the accompanying drawings.
GB7921721A 1979-06-21 1979-06-21 Wheel nuts Expired GB2051285B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7921721A GB2051285B (en) 1979-06-21 1979-06-21 Wheel nuts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7921721A GB2051285B (en) 1979-06-21 1979-06-21 Wheel nuts

Publications (2)

Publication Number Publication Date
GB2051285A true GB2051285A (en) 1981-01-14
GB2051285B GB2051285B (en) 1983-08-17

Family

ID=10506008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7921721A Expired GB2051285B (en) 1979-06-21 1979-06-21 Wheel nuts

Country Status (1)

Country Link
GB (1) GB2051285B (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002690A1 (en) * 1981-02-14 1982-08-19 Adcock Neil Walter Wheel nuts
EP0066794A1 (en) * 1981-05-28 1982-12-15 Russell, Burdsall &amp; Ward Corporation Fastener assembly and method of making the same
GB2129898A (en) * 1982-09-21 1984-05-23 George C Meibuhr Locknut assembly
GB2138529A (en) * 1983-04-20 1984-10-24 Oteco S R L Wheel Hub Nut
US4717299A (en) * 1986-02-27 1988-01-05 Armstong Fastenings, Ltd. Wheel nut assemblies
US4900209A (en) * 1988-08-04 1990-02-13 Pac-Fasteners Nut and washer single assembly structure
GB2225825A (en) * 1988-12-09 1990-06-13 Fort Vale Eng Ltd Swing bolt assembly for a pressure vessel
GB2238592A (en) * 1989-11-28 1991-06-05 China Bearing Co Ltd Self-aligning nut
GB2281368A (en) * 1993-08-21 1995-03-01 Mark Anthony Dennis Concealed fixing device
US6220801B1 (en) * 1999-02-02 2001-04-24 Chung-I Lin Free-running-on, locking-off and tension directly indicated locking nut (frolo & TDI locking nut)
WO2002031367A2 (en) * 2000-10-10 2002-04-18 Industrial And Automotive Fasteners, Llc Steel washer integral with nut/cap assembly
US7004700B2 (en) 2002-04-26 2006-02-28 Maclean-Fogg Company Theft deterrent wheel fastener cap assembly and method
WO2006045281A1 (en) * 2004-10-26 2006-05-04 Textron Verbindungstechnik Gmbh & Co Ohg Screw or nut and washer combination
CN101825133A (en) * 2010-05-14 2010-09-08 泉州丰源机械有限公司 Combined type tyre nut
WO2013067987A3 (en) * 2011-11-12 2013-08-29 Neumayer Tekfor Holding Gmbh Fastening element
DE102014203802A1 (en) 2014-03-03 2015-09-03 Berrang Entwicklungsgmbh fastener

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6749386B2 (en) 2001-08-20 2004-06-15 Maclean-Fogg Company Locking fastener assembly
US9322426B2 (en) * 2013-04-30 2016-04-26 Rb&W Manufacturing Llc Nut and sleeve fastener

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982002690A1 (en) * 1981-02-14 1982-08-19 Adcock Neil Walter Wheel nuts
EP0066794A1 (en) * 1981-05-28 1982-12-15 Russell, Burdsall &amp; Ward Corporation Fastener assembly and method of making the same
GB2129898A (en) * 1982-09-21 1984-05-23 George C Meibuhr Locknut assembly
GB2138529A (en) * 1983-04-20 1984-10-24 Oteco S R L Wheel Hub Nut
US4717299A (en) * 1986-02-27 1988-01-05 Armstong Fastenings, Ltd. Wheel nut assemblies
US4900209A (en) * 1988-08-04 1990-02-13 Pac-Fasteners Nut and washer single assembly structure
GB2225825A (en) * 1988-12-09 1990-06-13 Fort Vale Eng Ltd Swing bolt assembly for a pressure vessel
GB2225825B (en) * 1988-12-09 1993-08-18 Fort Vale Eng Ltd Swing bolt assembly for a pressure vessel
GB2238592A (en) * 1989-11-28 1991-06-05 China Bearing Co Ltd Self-aligning nut
GB2281368B (en) * 1993-08-21 1996-06-12 Mark Anthony Dennis Concealed fixing device
US5613793A (en) * 1993-08-21 1997-03-25 Dennis; Mark A. Concealed fixing device
GB2281368A (en) * 1993-08-21 1995-03-01 Mark Anthony Dennis Concealed fixing device
US6220801B1 (en) * 1999-02-02 2001-04-24 Chung-I Lin Free-running-on, locking-off and tension directly indicated locking nut (frolo & TDI locking nut)
US7435045B2 (en) * 2000-10-10 2008-10-14 Maclean-Fogg Company Steel washer integral with nut/cap assembly
WO2002031367A2 (en) * 2000-10-10 2002-04-18 Industrial And Automotive Fasteners, Llc Steel washer integral with nut/cap assembly
US6592314B1 (en) * 2000-10-10 2003-07-15 Industrial And Automotive Fasteners, Llc Steel washer integral with nut/cap assembly
WO2002031367A3 (en) * 2000-10-10 2004-02-26 Ind And Automotive Fasteners L Steel washer integral with nut/cap assembly
US7004700B2 (en) 2002-04-26 2006-02-28 Maclean-Fogg Company Theft deterrent wheel fastener cap assembly and method
WO2006045281A1 (en) * 2004-10-26 2006-05-04 Textron Verbindungstechnik Gmbh & Co Ohg Screw or nut and washer combination
CN101825133A (en) * 2010-05-14 2010-09-08 泉州丰源机械有限公司 Combined type tyre nut
WO2013067987A3 (en) * 2011-11-12 2013-08-29 Neumayer Tekfor Holding Gmbh Fastening element
DE102014203802A1 (en) 2014-03-03 2015-09-03 Berrang Entwicklungsgmbh fastener
US9976590B2 (en) 2014-03-03 2018-05-22 Berrang Entwicklungs GmbH Fastening element

Also Published As

Publication number Publication date
GB2051285B (en) 1983-08-17

Similar Documents

Publication Publication Date Title
GB2051285A (en) Wheel Nuts
US5584628A (en) Device for connecting parts having holes with different center-to-center distances
EP2602123B1 (en) An integrated hub-bearing assembly for the wheel of a motor vehicle
US3366421A (en) Disk wheel
US6102488A (en) Torque angle limiting wheelnut
US4679860A (en) Wheel assembly for vehicle
US6070946A (en) Dual wheel mounting system
GB2105001A (en) Arrangement for making machine elements axially fast
JP2841333B2 (en) Rolling bearing
US20100308643A1 (en) Wheel hub stress reduction system
KR20030094277A (en) Installation of a Hub/Bearing Assembly for an Automotive Vehicle
US3441298A (en) Purgible seal assembly
US20120263558A1 (en) Hub centric wheel fastener
SE454340B (en) FIXED WHEEL FIXING DEVICE
US3560052A (en) Devices for mounting vehicle wheels
US7097402B2 (en) Lock nut
US1944595A (en) Lock nut
JPH09164958A (en) Steering wheel fixture of automobile to steering shaft
US4116489A (en) Lock ring flanged tire carrying rim and wheel
US5494335A (en) Motor vehicle wheel arrangement
WO2021020053A1 (en) Vehicular wheel
US5735655A (en) Lock nut assembly for vehicle axles
US2410579A (en) Reversible wheel
US4065186A (en) Dual flanged wide base tire carrying rim and wheel
US2548840A (en) Stud for mounting wheels or the like

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee